Gogukcheon of Goguryeo
Ji'An, Tonghua, Jilin, ChinaKing Gogukcheon of Goguryeo was the ninth monarch of Goguryeo, one of the Three Kingdoms of Korea.
In 180, Gogukcheon married Lady U, the daughter of U So of the Jena-bu, further consolidating central power. During his reign, the names of five 'bu', or powerful regional clans, become names of districts of the central kingdom, and rebellions by the aristocracy were suppressed, notably in 191.
In 184, Gogukcheon sent his younger brother, Prince Gye-su to fight Chinese Han Dynasty invasion force of the governor of Liaodong. Though Prince Gye-Su was able to block the army, the king later directly led his armies to repel Han forces in 184. In 191, King Gogukcheon adopted a meritocratic system for selecting government officials.As a result, he discovered many talented people from all over Goguryeo, the greatest of them being Eul Pa-So, who was given the position of Prime Minister.